XML 80 R31.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Real Estate and Accumulated Depreciation
12 Months Ended
Dec. 31, 2019
Real Estate And Accumulated Depreciation Disclosure [Abstract]  
Real Estate and Accumulated Depreciation

PROLOGIS, INC. AND PROLOGIS, L.P.

SCHEDULE III – REAL ESTATE AND ACCUMULATED DEPRECIATION

DECEMBER 31, 2019

(In thousands of U.S. dollars, as applicable)

 

 

 

 

 

 

 

 

Initial Cost to

Prologis

 

 

Costs

Capitalized

 

 

Gross Amounts at Which Carried

at December 31, 2019

 

 

 

 

 

 

 

Description

No. of Bldgs.

 

 

Encum-

brances

 

Land

 

 

Building &

Improvements

 

 

Subsequent

to

Acquisition

 

 

Land

 

 

Building &

Improvements

 

 

Total

(a,b)

 

 

Accumulated

Depreciation

(c)

 

 

Date of

Construction/

Acquisition

Operating Properties (d)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

U.S. Markets

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Atlanta

101

 

 

(d)

 

 

216,372

 

 

 

829,879

 

 

 

272,839

 

 

 

218,105

 

 

 

1,100,985

 

 

 

1,319,090

 

 

 

(206,478

)

 

1994-2019

Austin

10

 

 

 

 

 

12,783

 

 

 

52,335

 

 

 

7,859

 

 

 

12,837

 

 

 

60,140

 

 

 

72,977

 

 

 

(22,921

)

 

1994-2015

Baltimore/Washington D.C.

52

 

 

(d)

 

 

140,823

 

 

 

384,274

 

 

 

149,324

 

 

 

141,824

 

 

 

532,597

 

 

 

674,421

 

 

 

(98,377

)

 

1995-2019

Central and Eastern Pennsylvania

42

 

 

 

 

 

252,910

 

 

 

843,408

 

 

 

185,974

 

 

 

258,473

 

 

 

1,023,819

 

 

 

1,282,292

 

 

 

(197,112

)

 

2002-2018

Central Valley

30

 

 

(d)

 

 

145,885

 

 

 

386,853

 

 

 

512,850

 

 

 

156,628

 

 

 

888,960

 

 

 

1,045,588

 

 

 

(152,639

)

 

1999-2019

Charlotte

16

 

 

(d)

 

 

15,202

 

 

 

32,889

 

 

 

60,584

 

 

 

17,465

 

 

 

91,210

 

 

 

108,675

 

 

 

(40,658

)

 

1994-2015

Chicago

186

 

 

(d)

 

 

585,670

 

 

 

1,858,769

 

 

 

358,871

 

 

 

597,329

 

 

 

2,205,981

 

 

 

2,803,310

 

 

 

(518,779

)

 

1995-2019

Cincinnati

28

 

 

(d)

 

 

51,705

 

 

 

197,745

 

 

 

101,688

 

 

 

54,820

 

 

 

296,318

 

 

 

351,138

 

 

 

(46,498

)

 

1996-2019

Columbus

23

 

 

(d)

 

 

24,685

 

 

 

121,369

 

 

 

52,230

 

 

 

25,078

 

 

 

173,206

 

 

 

198,284

 

 

 

(75,937

)

 

1996-2015

Dallas/Fort Worth

135

 

 

(d)

 

 

250,306

 

 

 

1,010,176

 

 

 

298,476

 

 

 

252,403

 

 

 

1,306,555

 

 

 

1,558,958

 

 

 

(324,685

)

 

1994-2019

Denver

35

 

 

 

 

 

92,128

 

 

 

295,412

 

 

 

103,038

 

 

 

90,534

 

 

 

400,044

 

 

 

490,578

 

 

 

(106,338

)

 

1993-2019

Houston

105

 

 

(d)

 

 

171,533

 

 

 

713,667

 

 

 

140,145

 

 

 

171,601

 

 

 

853,744

 

 

 

1,025,345

 

 

 

(164,396

)

 

1993-2018

Indianapolis

19

 

 

 

 

 

15,970

 

 

 

85,015

 

 

 

42,463

 

 

 

15,970

 

 

 

127,478

 

 

 

143,448

 

 

 

(47,598

)

 

1995-2018

Jacksonville

1

 

 

 

 

 

-

 

 

 

2,892

 

 

 

273

 

 

 

-

 

 

 

3,165

 

 

 

3,165

 

 

 

(2,221

)

 

2011

Kansas City

2

 

 

 

 

 

-

 

 

 

14,411

 

 

 

202

 

 

 

-

 

 

 

14,613

 

 

 

14,613

 

 

 

(8,891

)

 

2011

Las Vegas

50

 

 

 

 

 

114,573

 

 

 

261,616

 

 

 

156,548

 

 

 

109,231

 

 

 

423,506

 

 

 

532,737

 

 

 

(76,356

)

 

1996-2018

Louisville

11

 

 

 

 

 

42,979

 

 

 

226,263

 

 

 

45,185

 

 

 

43,285

 

 

 

271,142

 

 

 

314,427

 

 

 

(64,026

)

 

2005-2015

Nashville

22

 

 

 

 

 

61,699

 

 

 

268,238

 

 

 

44,912

 

 

 

63,288

 

 

 

311,561

 

 

 

374,849

 

 

 

(45,442

)

 

1995-2019

New Jersey/New York City

106

 

 

(d)

 

 

864,493

 

 

 

1,514,057

 

 

 

476,276

 

 

 

862,577

 

 

 

1,992,249

 

 

 

2,854,826

 

 

 

(494,401

)

 

1996-2019

Orlando

48

 

 

 

 

 

82,256

 

 

 

320,781

 

 

 

65,185

 

 

 

82,683

 

 

 

385,539

 

 

 

468,222

 

 

 

(75,025

)

 

1994-2018

Phoenix

29

 

 

 

 

 

48,572

 

 

 

176,656

 

 

 

50,042

 

 

 

48,563

 

 

 

226,707

 

 

 

275,270

 

 

 

(53,561

)

 

1992-2018

Portland

17

 

 

(e)

 

 

37,921

 

 

 

104,290

 

 

 

19,199

 

 

 

36,583

 

 

 

124,827

 

 

 

161,410

 

 

 

(29,923

)

 

2006-2019

Reno

17

 

 

(d)

 

 

23,919

 

 

 

143,324

 

 

 

88,307

 

 

 

25,393

 

 

 

230,157

 

 

 

255,550

 

 

 

(68,685

)

 

1994-2015

San Antonio

20

 

 

(d)

 

 

25,735

 

 

 

95,828

 

 

 

40,425

 

 

 

25,958

 

 

 

136,030

 

 

 

161,988

 

 

 

(51,898

)

 

1994-2016

San Francisco Bay Area

211

 

 

(d)

 

 

816,163

 

 

 

1,523,357

 

 

 

321,069

 

 

 

821,459

 

 

 

1,839,130

 

 

 

2,660,589

 

 

 

(589,850

)

 

1993-2019

Seattle

87

 

 

(e)

 

 

592,228

 

 

 

977,905

 

 

 

287,168

 

 

 

612,918

 

 

 

1,244,383

 

 

 

1,857,301

 

 

 

(178,380

)

 

2008-2019

South Florida

99

 

 

(d)

 

 

369,762

 

 

 

746,107

 

 

 

198,663

 

 

 

375,397

 

 

 

939,135

 

 

 

1,314,532

 

 

 

(206,516

)

 

1994-2019

Southern California

309

 

 

(d)(e)

 

 

2,545,605

 

 

 

3,857,820

 

 

 

921,231

 

 

 

2,626,752

 

 

 

4,697,904

 

 

 

7,324,656

 

 

 

(1,144,891

)

 

2005-2019

Subtotal U.S. Markets:

 

1,811

 

 

 

 

 

7,601,877

 

 

 

17,045,336

 

 

 

5,001,026

 

 

 

7,747,154

 

 

 

21,901,085

 

 

 

29,648,239

 

 

 

(5,092,482

)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Other Americas Markets

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Canada

32

 

 

(d)

 

 

220,424

 

 

 

381,013

 

 

 

264,917

 

 

 

246,296

 

 

 

620,058

 

 

 

866,354

 

 

 

(109,179

)

 

2008-2019

Mexico

 

10

 

 

 

 

 

100,826

 

 

 

2,287

 

 

 

124,353

 

 

 

105,421

 

 

 

122,045

 

 

 

227,466

 

 

 

(3,921

)

 

2011-2019

Subtotal Other Americas Markets:

 

42

 

 

 

 

 

321,250

 

 

 

383,300

 

 

 

389,270

 

 

 

351,717

 

 

 

742,103

 

 

 

1,093,820

 

 

 

(113,100

)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Europe Markets

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

France

5

 

 

 

 

 

9,629

 

 

 

4,804

 

 

 

41,476

 

 

 

8,360

 

 

 

47,549

 

 

 

55,909

 

 

 

(2,985

)

 

2012-2019

Germany

2

 

 

 

 

 

10,437

 

 

 

5,418

 

 

 

601

 

 

 

10,437

 

 

 

6,019

 

 

 

16,456

 

 

 

(3,689

)

 

2011

Spain

5

 

 

 

 

 

6,396

 

 

 

36,341

 

 

 

12,280

 

 

 

6,696

 

 

 

48,321

 

 

 

55,017

 

 

 

(13,203

)

 

2011-2017

U.K.

2

 

 

 

 

 

58,255

 

 

 

27,775

 

 

 

1,969

 

 

 

58,259

 

 

 

29,740

 

 

 

87,999

 

 

 

(1,679

)

 

2018-2019

Subtotal Europe Markets:

 

14

 

 

 

 

 

84,717

 

 

 

74,338

 

 

 

56,326

 

 

 

83,752

 

 

 

131,629

 

 

 

215,381

 

 

 

(21,556

)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Asia Markets

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

China

2

 

 

 

 

 

1,372

 

 

 

8,320

 

 

 

109

 

 

 

1,148

 

 

 

8,653

 

 

 

9,801

 

 

 

(2,376

)

 

2011

Japan

2

 

 

(d)

 

 

33,871

 

 

 

-

 

 

 

145,682

 

 

 

36,437

 

 

 

143,116

 

 

 

179,553

 

 

 

(10,094

)

 

2016-2019

Singapore

5

 

 

 

 

 

-

 

 

 

137,142

 

 

 

3,897

 

 

 

-

 

 

 

141,039

 

 

 

141,039

 

 

 

(54,604

)

 

2011

Subtotal Asia Markets:

 

9

 

 

 

 

 

35,243

 

 

 

145,462

 

 

 

149,688

 

 

 

37,585

 

 

 

292,808

 

 

 

330,393

 

 

 

(67,074

)

 

 

Total Operating Properties

 

1,876

 

 

 

 

 

8,043,087

 

 

 

17,648,436

 

 

 

5,596,310

 

 

 

8,220,208

 

 

 

23,067,625

 

 

 

31,287,833

 

 

 

(5,294,212

)

 

 

 

PROLOGIS, INC. AND PROLOGIS, L.P.

SCHEDULE III – REAL ESTATE AND ACCUMULATED DEPRECIATION

DECEMBER 31, 2019

(In thousands of U.S. dollars, as applicable)

 

 

 

 

 

 

 

 

Initial Cost to

Prologis

 

 

Costs

Capitalized

 

 

Gross Amounts at Which Carried

at December 31, 2019

 

 

 

 

 

 

Date of

Description

No. of Bldgs.

 

 

Encum-

brances

 

Land

 

 

Building &

Improvements

 

 

Subsequent

to

Acquisition

 

 

Land

 

 

Building &

Improvements

 

 

Total

(a,b)

 

 

Accumulated

Depreciation

(c)

 

 

Construction/

Acquisition

(f)

Development Portfolio

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

U.S. Markets

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Atlanta

1

 

 

 

 

 

3,209

 

 

 

-

 

 

 

451

 

 

 

3,209

 

 

 

451

 

 

 

3,660

 

 

 

 

 

 

 

Baltimore/Washington D.C.

2

 

 

 

 

 

4,005

 

 

 

-

 

 

 

9,125

 

 

 

4,005

 

 

 

9,125

 

 

 

13,130

 

 

 

 

 

 

 

Central Valley

3

 

 

 

 

 

14,705

 

 

 

-

 

 

 

60,894

 

 

 

14,705

 

 

 

60,894

 

 

 

75,599

 

 

 

 

 

 

2019

Chicago

3

 

 

 

 

 

11,839

 

 

 

-

 

 

 

25,166

 

 

 

11,839

 

 

 

25,166

 

 

 

37,005

 

 

 

 

 

 

2019

Cincinnati

1

 

 

 

 

 

750

 

 

 

119

 

 

 

8,232

 

 

 

750

 

 

 

8,351

 

 

 

9,101

 

 

 

 

 

 

2019

Dallas/Fort Worth

5

 

 

 

 

 

4,926

 

 

 

-

 

 

 

25,566

 

 

 

4,926

 

 

 

25,566

 

 

 

30,492

 

 

 

 

 

 

2019

Denver

2

 

 

 

 

 

13,845

 

 

 

-

 

 

 

31,182

 

 

 

13,845

 

 

 

31,182

 

 

 

45,027

 

 

 

 

 

 

2019

Houston

1

 

 

 

 

 

1,672

 

 

 

-

 

 

 

2,401

 

 

 

1,672

 

 

 

2,401

 

 

 

4,073

 

 

 

 

 

 

 

Indianapolis

1

 

 

 

 

 

1,969

 

 

 

-

 

 

 

-

 

 

 

1,969

 

 

 

-

 

 

 

1,969

 

 

 

 

 

 

 

Las Vegas

2

 

 

 

 

 

17,544

 

 

 

-

 

 

 

29,391

 

 

 

17,544

 

 

 

29,391

 

 

 

46,935

 

 

 

 

 

 

2019

Louisville

1

 

 

 

 

 

1,788

 

 

 

-

 

 

 

351

 

 

 

1,788

 

 

 

351

 

 

 

2,139

 

 

 

 

 

 

 

Nashville

1

 

 

 

 

 

5,668

 

 

 

-

 

 

 

17,106

 

 

 

5,668

 

 

 

17,106

 

 

 

22,774

 

 

 

 

 

 

2019

New Jersey/New York City

1

 

 

(d)

 

 

40,963

 

 

 

-

 

 

 

37,821

 

 

 

40,963

 

 

 

37,821

 

 

 

78,784

 

 

 

 

 

 

2019

Orlando

4

 

 

 

 

 

24,340

 

 

 

-

 

 

 

16,852

 

 

 

24,340

 

 

 

16,852

 

 

 

41,192

 

 

 

 

 

 

 

Phoenix

8

 

 

 

 

 

43,651

 

 

 

-

 

 

 

42,841

 

 

 

43,651

 

 

 

42,841

 

 

 

86,492

 

 

 

 

 

 

2019

Portland

2

 

 

 

 

 

12,959

 

 

 

-

 

 

 

3,588

 

 

 

12,959

 

 

 

3,588

 

 

 

16,547

 

 

 

 

 

 

 

Reno

1

 

 

 

 

 

1,471

 

 

 

-

 

 

 

1,207

 

 

 

1,471

 

 

 

1,207

 

 

 

2,678

 

 

 

 

 

 

 

San Francisco Bay Area

6

 

 

 

 

 

44,177

 

 

 

7,532

 

 

 

77,060

 

 

 

44,177

 

 

 

84,592

 

 

 

128,769

 

 

 

 

 

 

2019

Seattle

2

 

 

 

 

 

31,495

 

 

 

-

 

 

 

19,116

 

 

 

31,495

 

 

 

19,116

 

 

 

50,611

 

 

 

 

 

 

 

South Florida

2

 

 

 

 

 

15,145

 

 

 

-

 

 

 

25,037

 

 

 

15,145

 

 

 

25,037

 

 

 

40,182

 

 

 

 

 

 

2019

Southern California

5

 

 

 

 

 

38,264

 

 

 

-

 

 

 

135,409

 

 

 

38,264

 

 

 

135,409

 

 

 

173,673

 

 

 

 

 

 

 

Subtotal U.S. Markets:

 

54

 

 

 

 

 

334,385

 

 

 

7,651

 

 

 

568,796

 

 

 

334,385

 

 

 

576,447

 

 

 

910,832

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Other Americas Markets

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Canada

1

 

 

 

 

 

10,346

 

 

 

-

 

 

 

1,408

 

 

 

10,346

 

 

 

1,408

 

 

 

11,754

 

 

 

 

 

 

 

Mexico

4

 

 

 

 

 

25,890

 

 

 

-

 

 

 

26,911

 

 

 

25,890

 

 

 

26,911

 

 

 

52,801

 

 

 

 

 

 

2019

Subtotal Other Americas Markets:

 

5

 

 

 

 

 

36,236

 

 

 

-

 

 

 

28,319

 

 

 

36,236

 

 

 

28,319

 

 

 

64,555

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Europe Markets

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Czech Republic

2

 

 

 

 

 

7,176

 

 

 

-

 

 

 

18,356

 

 

 

7,176

 

 

 

18,356

 

 

 

25,532

 

 

 

 

 

 

2019

France

4

 

 

 

 

 

14,108

 

 

 

-

 

 

 

30,327

 

 

 

14,108

 

 

 

30,327

 

 

 

44,435

 

 

 

 

 

 

2019

Germany

4

 

 

 

 

 

16,456

 

 

 

-

 

 

 

27,540

 

 

 

16,456

 

 

 

27,540

 

 

 

43,996

 

 

 

 

 

 

2019

Italy

7

 

 

 

 

 

42,451

 

 

 

-

 

 

 

17,010

 

 

 

42,451

 

 

 

17,010

 

 

 

59,461

 

 

 

 

 

 

 

Netherlands

7

 

 

 

 

 

31,468

 

 

 

-

 

 

 

47,771

 

 

 

31,468

 

 

 

47,771

 

 

 

79,239

 

 

 

 

 

 

2019

Poland

4

 

 

 

 

 

11,318

 

 

 

-

 

 

 

35,792

 

 

 

11,318

 

 

 

35,792

 

 

 

47,110

 

 

 

 

 

 

2019

Slovakia

2

 

 

 

 

 

4,614

 

 

 

-

 

 

 

29,756

 

 

 

4,614

 

 

 

29,756

 

 

 

34,370

 

 

 

 

 

 

2019

Spain

1

 

 

 

 

 

10,184

 

 

 

-

 

 

 

11,259

 

 

 

10,184

 

 

 

11,259

 

 

 

21,443

 

 

 

 

 

 

2019

Sweden

1

 

 

 

 

 

6,054

 

 

 

-

 

 

 

4,550

 

 

 

6,054

 

 

 

4,550

 

 

 

10,604

 

 

 

 

 

 

 

U.K.

7

 

 

 

 

 

124,163

 

 

 

-

 

 

 

17,672

 

 

 

124,163

 

 

 

17,672

 

 

 

141,835

 

 

 

 

 

 

 

Subtotal Europe Markets:

 

39

 

 

 

 

 

267,992

 

 

 

-

 

 

 

240,033

 

 

 

267,992

 

 

 

240,033

 

 

 

508,025

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Asia Markets

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Japan

7

 

 

(d)

 

 

164,827

 

 

 

-

 

 

 

221,028

 

 

 

164,827

 

 

 

221,028

 

 

 

385,855

 

 

 

 

 

 

2019

Subtotal Asia Markets:

 

7

 

 

 

 

 

164,827

 

 

 

-

 

 

 

221,028

 

 

 

164,827

 

 

 

221,028

 

 

 

385,855

 

 

 

 

 

 

 

Total Development Portfolio

 

105

 

 

 

 

 

803,440

 

 

 

7,651

 

 

 

1,058,176

 

 

 

803,440

 

 

 

1,065,827

 

 

 

1,869,267

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GRAND TOTAL

 

1,981

 

 

 

 

 

8,846,527

 

 

 

17,656,087

 

 

 

6,654,486

 

 

 

9,023,648

 

 

 

24,133,452

 

 

 

33,157,100

 

 

 

(5,294,212

)

 

 

 

Schedule III – Footnotes

 

(a)

The following table reconciles real estate assets per Schedule III to the Consolidated Balance Sheets in Item 8. Financial Statements and Supplementary Data at December 31, 2019 (in thousands):

 

 

Total operating properties and development portfolio per Schedule III

 

$

33,157,100

 

(g)

 

Land

 

 

1,101,646

 

 

 

Other real estate investments

 

 

965,668

 

 

 

Total per Consolidated Balance Sheets

 

$

35,224,414

 

 

 

(b)

The aggregate cost for federal tax purposes at December 31, 2019, of our real estate assets was approximately $23.5 billion (unaudited).

 

(c)

Real estate assets (excluding land balances) are depreciated over their estimated useful lives. These useful lives are generally 5 to 7 years for capital improvements, 10 years for standard tenant improvements, 15 to 25 years for depreciable land

improvements, 25 to 35 years for operating properties acquired based on the age of the building and 40 years for operating properties we develop.

 

The following table reconciles accumulated depreciation per Schedule III to the Consolidated Balance Sheets in Item 8. Financial Statements and Supplementary Data at December 31, 2019 (in thousands):

 

Total accumulated depreciation per Schedule III

 

$

5,294,212

 

(g)

Accumulated depreciation on other real estate investments

 

 

143,450

 

 

Total per Consolidated Balance Sheets

 

$

5,437,662

 

 

 

(d)

Properties with an aggregate undepreciated cost of $1.7 billion secure $557.0 million of mortgage notes. See Note 8 to the Consolidated Financial Statements in Item 8. Financial Statements and Supplementary Data for more information related to our secured mortgage debt.

 

(e)

Assessment bonds of $10.9 million are secured by assessments (similar to property taxes) on various underlying real estate properties with an aggregate undepreciated cost of $601.9 million. The assessment bonds are included in term loans and unsecured other debt in Note 8 to the Consolidated Financial Statements in Item 8. Financial Statements and Supplementary Data.

 

(f)

Date of construction is provided for properties in the development portfolio that were completed but not yet stabilized.

 

(g)

The following table summarizes our real estate assets and accumulated depreciation per Schedule III for the years ended December 31 (in thousands):

 

 

 

 

2019

 

 

2018

 

 

2017

 

 

Real estate assets:

 

 

 

 

 

 

 

 

 

 

 

 

 

Balance at beginning of year

 

$

32,774,956

 

 

$

24,178,816

 

 

$

25,375,539

 

 

Acquisitions of and improvements to operating properties, development

     activity and net effect of changes in foreign exchange rates and other

 

 

2,821,919

 

 

 

10,106,651

 

 

 

2,680,484

 

 

Basis of operating properties disposed of

 

 

(1,471,764

)

 

 

(1,461,458

)

 

 

(3,697,798

)

 

Change in the development portfolio balance, including the acquisition of

     properties

 

 

(273,534

)

 

 

549,312

 

 

 

161,408

 

 

Assets transferred to held for sale and contribution

 

 

(694,477

)

 

 

(598,365

)

 

 

(340,817

)

 

Balance at end year

 

$

33,157,100

 

 

$

32,774,956

 

 

$

24,178,816

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Accumulated depreciation:

 

 

 

 

 

 

 

 

 

 

 

 

 

Balance at beginning of year

 

$

4,550,958

 

 

$

3,971,501

 

 

$

3,679,479

 

 

Depreciation expense

 

 

843,872

 

 

 

703,215

 

 

 

614,756

 

 

Balances retired upon disposition of operating properties and net effect of

     changes in foreign exchange rates and other

 

 

(77,583

)

 

 

(119,029

)

 

 

(313,584

)

 

Assets transferred to held for sale and contribution

 

 

(23,035

)

 

 

(4,729

)

 

 

(9,150

)

 

Balance at end of year

 

$

5,294,212

 

 

$

4,550,958

 

 

$

3,971,501